LINKS 》 Linux Kernel Data-Structures
Here is a quick reference of important Linux Kernel Data Structures of various assorted Kernel Subsystems such as: Process, Memory Management, Networking, File System, Device Drives, IPC and so on. So when you write custom Kernel code, it is often you may need to populate a new instance of one of these data-structures or just access the existing ones. Hence it is very important to know some of these and get familiarized with. You can bookmark this page, so that you can use this as a quick reference when you write your own custom Linux Kernel Modules.
| Linux Kernel - Process and Memory Subsystems |
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struct task_struct - process/task data-structure
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struct mm_struct - Virtual Memory (Memory management) data-structure
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| Linux Kernel - Networking Subsystem |
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struct sk_buff - socket buffer
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struct net_device - The DEVICE structure
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struct ethhdr - Ethernet frame header
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struct iphdr - IP(IPv4) header
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struct tcphdr - TCP header
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struct udphdr - UDP header
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struct tcp_congestion_ops - TCP Congestion Control registration data-structure
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struct ethtool_ops - optional netdev operations
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struct dst_entry - packet destination
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struct sock - network layer representation of sockets
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struct socket - general BSD socket
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| Linux Kernel - FileSystems Subsystem |
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struct file_system_type - file-system registration data-structure
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struct inode - file and directory inode meta-data data-structure
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struct file - file data-structure which holds inode and other file meta-data
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